.w {
    width: 1200px;
    margin: 0 auto;
}
header {
    background-color: #333333;

}
header .head-nav {
    display: flex;
    height: 50px;
    line-height: 50px;
}
header .head-nav a {
    color: #fff;
    margin-right: 15px;
}

.nav-main  {
    padding: 20px 0;
    display: flex;
    align-items: center;
}
.nav-main a {
    padding: 0 20px;
}


.footer-top {
    padding: 40px 0;
    display: flex;

}
.footer-left {
    flex: 1;
    display: flex;
    justify-content: space-evenly;
    border-right: #ccc 1px solid;
}
.footer-left dl {
    text-align: center;
}
.footer-left dt {
    font-size: 18px;
    color: #333;
    margin-bottom: 20px;
}
.footer-left dd {
    color: #7f7c80;
    line-height: 30px;
}
.footer-right {
    padding: 0 50px;
    text-align: center;
}
.footer-right h3 {
    color: #ff6607;
    font-size: 26px;
}
.footer-right p {
    font-size: 14px;
}

.footer-bottom {
    display: flex;
    background-color:#f6f6f6 ;
    padding: 30px 0 30px 80px;
    align-items: center;
}
.footer-bottom .ft-left {
    margin-right: 20px;
}
.ft-right p {
    color: #ccc;
    font-size: 12px;
}
.ft-right p:nth-child(1) {
    font-size: 14px;
    color: #333;
}
.bottom {
    background-color: #f6f6f6;
    text-align: center;
}